Merge: nitcorn: handle SIGINT and SIGTERM

[nit.git] / lib / nitcorn / signal_handler.nit

diff --git a/lib/nitcorn/signal_handler.nit b/lib/nitcorn/signal_handler.nit
new file mode 100644 (file)
index 0000000..3317a05
--- /dev/null
+++ b/lib/nitcorn/signal_handler.nit
@@ -0,0 +1,39 @@
+# This file is part of NIT ( http://www.nitlanguage.org ).
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Handle SIGINT and SIGTERM to close the server after all active events
+module signal_handler
+
+import reactor
+
+redef class HttpFactory
+       super EventCallback
+
+       private var signal_handlers: Array[NativeEvSignal] = [
+               new NativeEvSignal(event_base, 2, self), # SIGINT
+               new NativeEvSignal(event_base, 15, self) # SIGTERM
+               ] is lazy
+
+       redef fun run
+       do
+               for handler in signal_handlers do handler.add
+               super
+       end
+
+       redef fun callback(events)
+       do
+               event_base.loopexit
+               for handler in signal_handlers do handler.del
+       end
+end